<template>
    <div class="login-wrap">
        <div class="ms-login">
            <div class="ms-title" style="color:#00d1b2;">DEMO演示系统</div>
            <el-form :model="param" :rules="rules" ref="login" label-width="0px" class="ms-content">
                <el-form-item prop="username">
                    <el-input v-model="param.username" placeholder="username">
                        <el-button slot="prepend" icon="el-icon-lx-people"></el-button>
                    </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input
                        type="password"
                        placeholder="password"
                        v-model="param.password"
                        @keyup.enter.native="submitForm()"
                    >
                        <el-button slot="prepend" icon="el-icon-lx-lock"></el-button>
                    </el-input>
                </el-form-item>
                <div class="login-btn">
                    <el-button type="primary" @click="submitForm()">登录</el-button>
                </div>
                <p class="login-tips" style="color:#00d1b2;">Tips:注册后为普通用户，可以观看演示DEMO。<el-link type="danger" @click="registerVisible = true" style="display:inline-block;float:right">注 册</el-link></p>
            </el-form>
        </div>

        <!-- 注册 -->
        <el-dialog
        title="用户注册"
        :visible.sync="registerVisible"
        width="35%">
            <el-form ref="form" :model="form" label-width="40px">
                <el-form-item label="账户">
                    <el-input v-model="form.username"></el-input>
                </el-form-item>
                <el-form-item label="密码">
                    <el-input type="password" v-model="form.password"></el-input>
                </el-form-item>
                <el-form-item label="验证码" label-width="90px">
                    <el-input style="width:270px" v-model="form.checkCode"></el-input>
                </el-form-item>
                <div class="verify-box" style="float:right; margin-top:-55px" @click="refreshCode">
                    <Sidentify :identifyCode="identifyCode"></Sidentify>
                </div>
                <el-form-item style="text-align:center;">
                    <el-button type="primary" @click="register">注 册</el-button>
                    <el-button @click="registerVisible = false">取消</el-button>
                </el-form-item>
            </el-form>
        </el-dialog>

    </div>
</template>

<script>
import {userLogin,adminLogin,register} from '@/api'
import Sidentify from '@/components/page/Identify'

export default {
    components: {
        Sidentify
    },
    data: function() {
        return {
            param: {
                username: '',
                password: ''
            },
            rules: {
                username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
                password: [{ required: true, message: '请输入密码', trigger: 'blur' }],
            },
            registerVisible: false,
            form: {username: '',password: '',checkCode: ''},
            identifyCode: '',
            identifyCodes: [0,1,2,3,4,5,6,7,8,9,'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Z']
        };
    },
    methods: {
        submitForm() {
            this.$refs.login.validate(valid => {
                if (valid) {
                    let fromData = new FormData()
                    fromData.append('username', this.param.username)
                    fromData.append('password', this.param.password)
                    userLogin(fromData).then(res => {
                        if(res.code === 0){
                            localStorage.setItem('ms_username', this.param.username)
                            // this.$store.commit('SET_IDENTIFY','student')
                            localStorage.setItem('identify','user')
                            this.$message.success('登录成功')
                            this.$router.push('/dashboard')
                        }else{
                            this.$message.error('账号密码错误')
                            return false
                        }
                    }) 
                } else {
                    this.$message.error('请输入账号和密码');
                    return false;
                }
            });
        },
        register(){
            if(this.form.checkCode.toUpperCase() != this.identifyCode){
                this.$message.error('验证码不正确');
                return;
            }
            let formDate = new FormData()
            formDate.append('username',this.form.username)
            formDate.append('password',this.form.password)
            register(formDate).then(res => {
                if (res.code === "0") {
                    this.registerVisible = false
                    this.$message({
                        type: 'success',
                        message: '注册成功'
                    })
                    this.registerVisible = false;
                } else {
                    this.$message({
                        type: 'error',
                        message: res.msg
                    })
                }
            })
            this.refreshCode();
        },
        randomNum(min, max){
            return Math.floor(Math.random() * (max - min) + min);
        },
        refreshCode(){
            this.identifyCode = "";
            this.makeCode(this.identifyCodes,4);
        },
        makeCode(o, l){
            for (let i = 0; i < l; i++){
                this.identifyCode += this.identifyCodes[this.randomNum(0, this.identifyCodes.length)];
            }
        }
    },
    mounted(){
        this.refreshCode();
    }
};
</script>

<style scoped>
.login-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    background-image: url(../../assets/img/login-bg.jpg);
    background-size: 100%;
}
.ms-title {
    width: 100%;
    line-height: 50px;
    text-align: center;
    font-size: 20px;
    color: #fff;
    border-bottom: 1px solid #ddd;
}
.ms-login {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 350px;
    margin: -190px 0 0 -175px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.3);
    overflow: hidden;
}
.ms-content {
    padding: 30px 30px;
}
.login-btn {
    text-align: center;
}
.login-btn button {
    width: 100%;
    height: 36px;
    margin-bottom: 10px;
}
.login-tips {
    font-size: 12px;
    line-height: 30px;
    color: #fff;
}
</style>